Crock-press



(No Model.)

P. BENNETT.

011001; PRESS,

Patented 'Max'. 5, 1889.

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UNITED STATES PATENT Orrin-E.

FRANKLIN BENNET'I, Ol? CANAL FULTON, OHIO, ASSIGNOR OF TlfO-TIIIRDS TO BILLINGS BROTHERS, OF SAME PLACE, AND TO THE OHIO STONE- lYARlC COMPANY, OF AKRON, OIIIO.

CROCK-PRESS.

SPECIFICATION forming part of Letters Patent No. 399,178, dated March 5, 1889.

Application filed December 24, 1887. Seriai No. 258,903. IN@ model.)

To @ZZ whom, t may concern:

Be it known that I, FRANKLIN BENNETT, a. citizen of the United States, residing at Canal Fulton, in the county of Stark and State of Ohio, have invented a new and useful Improvement in Crock-Presses, of which the following is a speciicatimi.

My invention has relation to improvements in that class of machines for making stoneware crooks, in which the crock is formed by forcing the clay, in a plast-ic state, into a mold consisting of an inner core and an outer core, which form the rim and side walls, and cutting oit the clay beyond the end of the core, leaving a bottom on the crock. Heretofore this mechanism has consisted of a press for forcing the clay and a single mold used in connection therewith.

The ob jects of myinvcniion are to increase the capacity of the press by providing anomber of molds to be simultaneously iilled thereby, to improve and simplify the mechanism of the molds, and to provide devices for removing the completed crock without injury.

Hy invention consists in the devices illustrated in th e accompanying drawings, as hereinafter described and claimed.

In the accompanying drawings, in which similar reference-letters indicate like parts, Figure I is the lower end of a clay-cylinder having a head with multiple openings forthe attachment of crock-molds; Figs. 2 and 3, a side elevation and pian, respectively, of the croclcinold and connected parte adapted to be connected with one of the openings in the cylinder-head; Fig. 4, a central longitudinal vertical section of the outer sheliof the crockmold; Fig. 5,an end elevation of the croclc molds opened; Fig. ii, an end elevation of the carriage and operating mechanism from a section ]ine, a', of Fig. 3; and Figs. and S, a central vertical section and an end elevation (open) of a mold having a removable lining.

In the accompanying drawings, A is the lower part of an ordinary clay-cylinder similar to those which constitute a pari-of a sewerpipe press, ou the bottom of which is bolted ahead, B, having a number ot' lateral exitports, C, each provided with a iiange for con- 5o necting the crock-molds. On each of the exit.- ports C is bolted a short pipe, I), of the same internal diameter, upon the outer en d of which is iitted a sleeve, E, provided with a handle, e, by which it is revolved, its outer end when -5 5 drawn back being inthe same plane as the end of the pipe I). The sleeve E is retained on the pipe D, and its rotary and longitudinal movement thereon directed and limited by pins d, which project from the former and 6o rest -in segmental spiral slots c in the latter, so that by alternate partial rotations of the sleeve E it will be projected beyond and drawn back even with the pipe D. v

Opposite each sleeve E, and mounted on a 6 5 base, F, is an outer case, G, ot' the crock-mold, of the same internal diameter as and in the same axial line with said sleeve, so arranged that when the sleeve is forced outward the two shall unite and form a continuous tube. 7o

The case G consists of three segmental sec tions, the lower and shorter being attached to the base F, and the others hinged thereto and arranged to be clamped together by a locking device, g, the whole constituting a mold for 75 the outside of the crock and rim.

Upon the base F is a sliding carriage, H, directed by a guide, 7L, a-nd in which is journaled a shaft, J, in the saine axial line of the case G, and bearing on the end next said case So a closed cylinder, I, provided at the end farthest from said case with a rim, fi.

The cylinder I is of proper size to form the interior of or core for the crock, and with the rim z', when carried into and against the case 85 G, respectively, constitute with it the potnnold.

.The carriage Il is moved toward and from the case G by a handle, Il, pinion l, and rack 7e, and on the shaft J is alongpulley, P, which enables it to be revolved by a belt. (Not 9o shown.)

In operation the clay-cylinder A is charged with plastic clay, and the sleeveE of each set of molds is forced outward against the case G. Pressure is then applied in the cylinder 95 A, which forces the clay into the case G, si multaneously with which each cylinder I, be ing rapidly revolved by its pulley P, is also forced therein and retained until the intervening space is iilled with the plastic clay, which is spread and molded by the cylinder I. The pressure in the cylinder A is then arrested, the cylinder I drawn back, the sleeve E withdrawn .trom the ease G, and the body of clay cut off along the adjacent end of the ease G, leaving a bottom on'the completed crock therein. The case G is then unlocked and opened, and the crock removed by any suitable means, after which the operation is repeated. To facilitate the removal ot' the crock and avoid injury to it in its green state I, employ a modified form of case G', as shown in Figs. 7 and S, in which the lower portion of the case consists of a semicircular shell, g', which tits in recesses in the other parts of the case, and With them constitutes the inner face thereof. shell'g arenotches g", which enable it to be grasped by hand.

In operation, when the case G is opened, as hereinbefore described, thecrock remains on the shell g and is removed with it.

I claiml. In a crock-press oi' the class designated, the combination, with a pipe projecting from the exit-port of a clay-forcing cylinder and a crock-mold consisting of an outer case and an inner coreopposte Vand in the axial line with said pipe, of a sleeve which envelops the end of' said pipe, provided with devices,

In each side of thesuch substantially as shown, by which it is carried against and Withdrawn from said outer ease, substantially as and for the purpose hereinbefore set forth.

In a crock-press of the kind described, the combination, with a clay-forcing cylinder, and an outer mold composed of segmental sections hinged and arranged to be locked together and connected at one end With an eXit or discharge port of said cylinder, of a movable closed forming-cylinder mounted adjacent to and in alignment with the axis' of the u mold and a carriage for supporting said cylinder and for effecting the required move- Vments thereof toward and away from the said 

